13135331 has 8 divisors (see below), whose sum is σ = 14503104. Its totient is φ = 11796520.

The previous prime is 13135321. The next prime is 13135379. The reversal of 13135331 is 13353131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13135331 is a prime.

It is a super-2 number, since 2×13135331² = 345073840959122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13135301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6281 + ... + 8106.

It is an arithmetic number, because the mean of its divisors is an integer number (1812888).

Almost surely, 2^13135331 is an apocalyptic number.

13135331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13135331 is a deficient number, since it is larger than the sum of its proper divisors (1367773).

13135331 is a wasteful number, since it uses less digits than its factorization.

13135331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14481.

The product of its digits is 405, while the sum is 20.

The square root of 13135331 is about 3624.2697195435. The cubic root of 13135331 is about 235.9465729388.

Adding to 13135331 its reverse (13353131), we get a palindrome (26488462).

The spelling of 13135331 in words is "thirteen million, one hundred thirty-five thousand, three hundred thirty-one".